Global Patent Index - EP 1793141 A1

EP 1793141 A1 20070606 - Torsional vibration damper

Title (en)

Torsional vibration damper

Title (de)

Drehschwingungsdämpfer

Title (fr)

Amortisseur de torsion

Publication

EP 1793141 A1 20070606 (FR)

Application

EP 06124904 A 20061128

Priority

FR 0553641 A 20051130

Abstract (en)

The torsion damper, especially for a motor vehicle double damping flywheel with coaxial input and output members and circumferential springs that have flat ground ends to interact with stops, has the tip (36) of each spring's ground end face (38) turned inwards towards the interior of the spring and extending for at least 90 degrees round its axis. The springs, which are pre-curved before fitting in the damper, are mounted in pairs having the same diameter but different degrees of stiffness and opposite pitches. Their facing ends can press against one another directly or via a thrust plate.

Abstract (fr)

Amortisseur de torsion (16) pour véhicule automobile, dans lequel des ressorts (18, 20) agencés entre des butées (26, 28) solidaires d'éléments d'entrée (10) et de sortie (12) ont des extrémités meulées rabattues vers l'intérieur des ressorts. L'invention augmente notablement la durée de service d'un amortisseur de torsion.

IPC 8 full level

F16F 15/134 (2006.01)

CPC (source: EP)

F16F 15/134 (2013.01); F16F 15/1343 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1793141 A1 20070606; EP 1793141 B1 20090624; AT E434735 T1 20090715; DE 602006007418 D1 20090806; FR 2894006 A1 20070601; FR 2894006 B1 20100827; JP 2007155132 A 20070621; MX PA06013989 A 20081024

DOCDB simple family (application)

EP 06124904 A 20061128; AT 06124904 T 20061128; DE 602006007418 T 20061128; FR 0553641 A 20051130; JP 2006322903 A 20061130; MX PA06013989 A 20061130